All Truth of any type can come through the Holy Spirit.
Some by your physical response to the purity of the Spirit and some through wisdom in thoughts which flow as epiphanies.
There is nothing in the Bible that cannot flow through the Holy Spirit. It really puzzled me at first when scriptures that I had never read nor heard came from my mouth when filled with the Holy Spirit. Only later did I find them verbatim in the Bible.
It does not. There is general revelation in the world, as created by God. Truth with a capital T - inspired directly and recorded in Scripture - is different than general truth identified by science or observation.
There is nothing in the Bible that cannot flow through the Holy Spirit. It really puzzled me at first when scriptures that I had never read nor heard came from my mouth when filled with the Holy Spirit. Only later did I find them verbatim in the Bible.
I don't really have any comment on your own personal experience, since I wasn't there.